.container {/*    display: flex;*/
    flex-direction: column;
    justify-content: center;
    align-items: center;/*left: 0px;
    top: 0px;*/
    width: 454px;
    height: 454px;
}
.txt1 {
    font-size: 38px;
    text-align: center;
    width: 454px;
    height: 40px;
    margin-bottom: 10px;
}
.txt2 {
    font-size: 30px;
    text-align: center;
    width: 400px;
    height: 40px;
}
.btn {
    width: 300px;
    height: 50px;
    font-size: 38px;
    background-color: black;
    border-color: black;
    margin-top: 30px;
}
.img {
    width: 208px;
    height: 208px;
    margin-bottom: 10px;
    animation-name: aniname;/*动画名称*/
}

/*旋转动画*/
@keyframes aniname {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(360deg);
    }
}